nsenter

Run a new command in a running process' namespace. Particularly useful for docker images or chroot jails. More information: https://github.com/jpetazzo/nsenter/.

Run command in existing processes network namespace:

nsenter -t {{pid}} -n {{command}} {{command_arguments}}

Run a new command in an existing processes ps-table namespace:

nsenter -t {{pid}} -p {{command}} {{command_arguments}}

Run command in existing processes IPC namespace:

nsenter -t {{pid}} -i {{command}} {{command_arguments}}